PM5313 datasheet(71/646 Pages) PMC

71 / 646 page

PRODUCTION

PMC-Sierra, Inc.

PM5313 SPECTRA-622

DATASHEET

PMC-1981162

ISSUE 6

SONET/SDH PAYLOAD EXTRACTOR/ALIGNER FOR 622 MBIT/S

PROPRIETARY AND CONFIDENTIAL

Pin Name

Type

No.

Function

RLAIS/

Input

E17

The receive line AIS insertion (RLAIS) signal

controls the insertion of line AIS in the receive

outgoing stream, when the ring control port is

disabled. When RLAIS is set high, line AIS is

inserted in the receive outgoing stream. When

RLAIS is set low, line AIS may be optionally

inserted automatically upon detection of loss of

signal, loss of frame, section trace alarms or line

AIS in the incoming stream.

RLAIS is sampled on the rising edge of RCLK.

The SPECTRA-622 Receive LAIS Control register

contains the register bits that control the alarms that

are inserted using the RLAIS pin.

TRCPCLK

The transmit ring control port clock (TRCPCLK)

signal provides timing for the transmit ring control

port when the ring control port is enabled.

TRCPCLK is nominally a 3.24 MHz, 50% duty cycle

clock and can be connected directly to the

RRCPCLK output of a mate SPECTRA-622 in ring-

based add-drop multiplexer applications.

TRCPFP and TRCPDAT are sampled on the rising

edge of TRCPCLK.

The enabling and disabling of the ring control port is

controlled by the RCPEN bit in the SPECTRA-622

Ring Control register.

PM5313 Datasheet(PDF) 71 Page - PMC-Sierra, Inc